Not all of the problematic issues identified during this review could be neatly categorized as affecting only research, assessment, monitoring, crisis response, or outreach. Several of the barriers to ...

Add Yahoo as a preferred source to see more of our stories on Google. One of two main craters on Alaska’s Mount Spurr, shown in 1991. Earthquake activity suggests the volcano is close to erupting ...

Dr. John Eichelberger is the program coordinator for the USGS Volcano Hazards Program. He has more than 34 years of experience as a volcano expert and was previously the chair of the University of ...

During volcanic crises, the USGS Hawaiian Volcano Observatory (HVO) plays a pivotal role, sharing information on activity and associated hazards with close partners on the Island of Hawaii, including ...

Volcanic eruptions result from the ascent of magma from subsurface reservoirs to the Earth’s surface, where variations in pressure and volatile content determine whether eruptions are effusive or ...

Mt. Vesuvius, located in Campania Region (Southern Italy), is considered one of the world’s most dangerous volcanoes due to its probability of future explosive eruptions in a densely populated area.

More than 1,500 volcanoes have erupted on land in the past 10,000 years, and roughly 1,350 of them are still considered potentially active today, excluding those hidden along mid-ocean ridge belts.

Mount Dukono, a stratovolcano on the northern tip of Indonesia’s Halmahera Island, reportedly unleashed 86 explosions in a ...

Volcanic eruptions create some of nature’s most dramatic displays. Depending on their magnitude and location, they also have the potential for becoming major social and economic disasters. To date, ...